<template>
  <div class="app-container">
    <el-card class="filter-container" shadow="never">
      <div>
        <el-button style="float:right" type="primary" @click="handleSearchList()" size="small">查询搜索</el-button>
        <el-button
          style="float:right;margin-right: 15px"
          @click="handleResetSearch()"
          size="small"
        >重置
        </el-button>
      </div>
      <div style="margin-top: 15px">
        <el-form :inline="true" :model="listQuery" size="small" label-width="140px">
          <el-form-item label="资源名称：">
            <el-input v-model="listQuery.name" class="input-width" placeholder="资源名称" clearable></el-input>
          </el-form-item>
          <el-form-item label="资源路径：">
            <el-input v-model="listQuery.url" class="input-width" placeholder="资源路径" clearable></el-input>
          </el-form-item>
          <el-form-item label="资源分类：">
            <el-select
              v-model="listQuery.categoryId"
              placeholder="全部"
              clearable
              class="input-width"
            >
              <el-option
                v-for="item in categoryOptions"
                :key="item.value"
                :label="item.label"
                :value="item.value"
              ></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </div>
    </el-card>
    <el-card class="operate-container" shadow="never">
      <el-button size="mini" class="btn-add" @click="handleAdd()" style="margin-left: 20px">添加</el-button>
      <el-button size="mini" class="btn-add" @click="handleShowCategory()">资源分类</el-button>
    </el-card>
    <div class="table-container">
      <el-table
        ref="resourceTable"
        :data="list"
        style="width: 100%;"
        v-loading="listLoading"
        border
      >
        <el-table-column label="编号" width="100" align="center">
          <template slot-scope="scope">{{scope.row.id}}</template>
        </el-table-column>
        <el-table-column label="资源名称" align="center">
          <template slot-scope="scope">{{scope.row.name}}</template>
        </el-table-column>
        <el-table-column label="资源路径" align="center">
          <template slot-scope="scope">{{scope.row.url}}</template>
        </el-table-column>
        <el-table-column label="描述" align="center">
          <template slot-scope="scope">{{scope.row.description}}</template>
        </el-table-column>
        <el-table-column label="添加时间" width="180" align="center">
          <template slot-scope="scope">{{scope.row.createdTime | formatDateTime}}</template>
        </el-table-column>
        <el-table-column label="操作" width="140" align="center">
          <template slot-scope="scope">
            <el-button size="mini" type="text" @click="handleUpdate(scope.row)">编辑</el-button>
            <el-button size="mini" type="text" @click="handleDelete(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="pagination-container">
      <el-pagination
        background
        @size-change="handlePageSizeChange"
        @current-change="handleCurrentPageChange"
        layout="total, sizes,prev, pager, next,jumper"
        :current-page="listQuery.currentPage"
        :page-sizes="[5,10, 20]"
        :page-size="listQuery.pageSize"
        :total="total"
      ></el-pagination>
    </div>

    <!-- 添加&修改表单 -->
    <el-dialog :title="isEdit?'编辑资源':'添加资源'" :visible.sync="dialogVisible" width="40%">
      <el-form :model="resource" ref="resourceForm" label-width="150px" size="small">
        <el-form-item label="资源名称：">
          <el-input v-model="resource.name" style="width: 250px"></el-input>
        </el-form-item>
        <el-form-item label="资源路径：">
          <el-input v-model="resource.url" style="width: 250px"></el-input>
        </el-form-item>
        <el-form-item label="资源分类：">
          <el-select v-model="resource.categoryId" placeholder="全部" clearable style="width: 250px">
            <el-option
              v-for="item in categoryOptions"
              :key="item.value"
              :label="item.label"
              :value="item.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="描述：">
          <el-input v-model="resource.description" type="textarea" :rows="5" style="width: 250px"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small">取 消</el-button>
        <el-button type="primary" @click="handleSave()" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
  import {formatDate} from "@/utils/date";
  import {axios} from "../../utils";

  //查询条件
  const listQuery = {
    currentPage: 1,
    pageSize: 5,
    name: null,
    url: null,
    categoryId: null
  };

  //资源对象
  const defaultResource = {
    id: null,
    name: null,
    url: null,
    categoryId: null,
    description: ""
  };

  export default {
    name: "resourceList",
    title: "资源管理",
    data() {
      return {
        listQuery, //查询条件
        total: 0,
        list: [], //资源数据
        cateList: [], //资源分类数据
        listLoading: false,
        dialogVisible: false,
        resource: Object.assign({}, defaultResource),
        isEdit: false,
        categoryOptions: [],
        defaultCategoryId: null
      };
    },
    //钩子函数
    created() {
      //获取资源数据
      this.getResourceList();

      //获取资源分类数据
      this.getResourceCateList();
    },
    methods: {
      //方法1: 获取资源数据
      getResourceList() {

      },

      //方法2: 获取资源分类数据
      getResourceCateList() {
        axios.get("/ResourceCategory/findAllResourceCategory").then(res => {
          this.cateList = res.data.content;
          //遍历获取资源分类
          for (let i = 0; i < this.cateList.length; i++) {
            const cate = this.cateList[i];
            //将资源分类名与id保存到categoryOptions中,供下拉列表展示
            this.categoryOptions.push({
              label: cate.name,
              value: cate.id
            });
          }
          this.defaultCategoryId = this.cateList[0].id;
        }).catch(err => {
          this.$message.error("数据获取失败! ! !");
        });
      },

      //页码变化触发的函数
      handleCurrentPageChange(page) {
        this.listQuery.currentPage = page;
        this.getResourceList();
      }
      ,

      //每页显示条数变化触发的函数
      handlePageSizeChange(size) {
        this.listQuery.pageSize = size;
        this.getResourceList();
      }
      ,

      //查询按钮
      handleSearchList() {
        this.getResourceList();
      }
      ,

      //添加资源回显
      handleAdd() {
        this.dialogVisible = true; //显示表单
        this.isEdit = false; //新增为false
        this.resource = Object.assign({}, defaultResource); //资源对象
        this.resource.categoryId = this.defaultCategoryId; //保存默认分类id
      }
      ,

      //添加&修改资源
      handleSave() {
      }
      ,

      //编辑资源 回显
      handleUpdate(row) {
      }
      ,

      //删除资源
      handleDelete(row) {
      }
      ,

      //资源分类管理
      handleShowCategory() {
        this.$router.push({path: "/resourceCategory"});
      }
      ,

      handleResetSearch() {
        this.listQuery = Object.assign({}, defaultListQuery);
      }
    },
    filters: {
      formatDateTime(time) {
        if (time == null || time === "") {
          return "N/A";
        }
        const date = new Date(time);
        return formatDate(date, "yyyy-MM-dd hh:mm:ss");
      }
    }
  };
</script>
<style></style>
